I would really appreciate any help on this if you guys are able.

I have 2 worksheets, one with data and one with master information. the data WS has rows (All 5 columns across) that need to be compared against the master WS for matches. I need to compare these rows and I need to write a formula that will compare this to the master WS and tell me if there is a match anywhere on the master. Can this be done? Please help. I really do not want to eye over 10000 rows! Thanks guys.